1 /*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Paul Borman at Krystal Technologies.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * @(#)ctype.h 8.4 (Berkeley) 1/21/94
38 * $FreeBSD: head/include/ctype.h 233600 2012-03-28 12:11:54Z theraven $
39 */
40
41 #ifndef _CTYPE_H_
42 #define _CTYPE_H_
43
44 #include <sys/cdefs.h>
45 #include <machine/stdint.h>
46
47 #define _CTYPE_A 0x00000100L /* Alpha */
48 #define _CTYPE_C 0x00000200L /* Control */
49 #define _CTYPE_D 0x00000400L /* Digit */
50 #define _CTYPE_G 0x00000800L /* Graph */
51 #define _CTYPE_L 0x00001000L /* Lower */
52 #define _CTYPE_P 0x00002000L /* Punct */
53 #define _CTYPE_S 0x00004000L /* Space */
54 #define _CTYPE_U 0x00008000L /* Upper */
55 #define _CTYPE_X 0x00010000L /* X digit */
56 #define _CTYPE_B 0x00020000L /* Blank */
57 #define _CTYPE_R 0x00040000L /* Print */
58 #define _CTYPE_I 0x00080000L /* Ideogram */
59 #define _CTYPE_T 0x00100000L /* Special */
60 #define _CTYPE_Q 0x00200000L /* Phonogram */
61 #define _CTYPE_N 0x00400000L /* Number (superset of digit) */
62 #define _CTYPE_SW0 0x20000000L /* 0 width character */
63 #define _CTYPE_SW1 0x40000000L /* 1 width character */
64 #define _CTYPE_SW2 0x80000000L /* 2 width character */
65 #define _CTYPE_SW3 0xc0000000L /* 3 width character */
66 #define _CTYPE_SWM 0xe0000000L /* Mask for screen width data */
67 #define _CTYPE_SWS 30 /* Bits to shift to get width */
68
69 /*
70 * rune_t is declared to be an ``int'' instead of the more natural
71 * ``unsigned long'' or ``long''. Two things are happening here. It is not
72 * unsigned so that EOF (-1) can be naturally assigned to it and used. Also,
73 * it looks like 10646 will be a 31 bit standard. This means that if your
74 * ints cannot hold 32 bits, you will be in trouble. The reason an int was
75 * chosen over a long is that the is*() and to*() routines take ints (says
76 * ANSI C), but they use __ct_rune_t instead of int.
77 *
78 * NOTE: rune_t is not covered by ANSI nor other standards, and should not
79 * be instantiated outside of lib/libc/locale. Use wchar_t.
80 */
81 #ifndef ___CT_RUNE_T_DECLARED
82 typedef int __ct_rune_t; /* Arg type for ctype funcs */
83 #define ___CT_RUNE_T_DECLARED
84 #endif
85
86 __BEGIN_DECLS
87 unsigned long ___runetype(__ct_rune_t) __pure;
88 __ct_rune_t ___tolower(__ct_rune_t) __pure;
89 __ct_rune_t ___toupper(__ct_rune_t) __pure;
90 __END_DECLS
91
92 /*
93 * _EXTERNALIZE_CTYPE_INLINES_ is defined in locale/nomacros.c to tell us
94 * to generate code for extern versions of all our inline functions.
95 */
96 #ifdef _EXTERNALIZE_CTYPE_INLINES_
97 #define _USE_CTYPE_INLINE_
98 #define static
99 #undef __inline
100 #define __inline
101 #undef __always_inline
102 #define __always_inline
103 #endif
104
105 extern int __mb_sb_limit;
106
107 /*
108 * Use inline functions if we are allowed to and the compiler supports them.
109 */
110 #if !defined(_DONT_USE_CTYPE_INLINE_) && \
111 (defined(_USE_CTYPE_INLINE_) || defined(__GNUC__) || defined(__cplusplus))
112
113 #include <runetype.h>
114
115 static __inline __always_inline int
__maskrune(__ct_rune_t _c,unsigned long _f)116 __maskrune(__ct_rune_t _c, unsigned long _f)
117 {
118 return ((_c < 0 || _c >= _CACHED_RUNES) ? ___runetype(_c) :
119 _CurrentRuneLocale->__runetype[_c]) & _f;
120 }
121
122 static __inline __always_inline int
__sbmaskrune(__ct_rune_t _c,unsigned long _f)123 __sbmaskrune(__ct_rune_t _c, unsigned long _f)
124 {
125 return (_c < 0 || _c >= __mb_sb_limit) ? 0 :
126 _CurrentRuneLocale->__runetype[_c] & _f;
127 }
128
129 static __inline __always_inline int
__istype(__ct_rune_t _c,unsigned long _f)130 __istype(__ct_rune_t _c, unsigned long _f)
131 {
132 return (!!__maskrune(_c, _f));
133 }
134
135 static __inline __always_inline int
__sbistype(__ct_rune_t _c,unsigned long _f)136 __sbistype(__ct_rune_t _c, unsigned long _f)
137 {
138 return (!!__sbmaskrune(_c, _f));
139 }
140
141 static __inline __always_inline int
__isctype(__ct_rune_t _c,unsigned long _f)142 __isctype(__ct_rune_t _c, unsigned long _f)
143 {
144 return (_c < 0 || _c >= 128) ? 0 :
145 !!(_DefaultRuneLocale.__runetype[_c] & _f);
146 }
147
148 static __inline __always_inline __ct_rune_t
__toupper(__ct_rune_t _c)149 __toupper(__ct_rune_t _c)
150 {
151 return (_c < 0 || _c >= _CACHED_RUNES) ? ___toupper(_c) :
152 _CurrentRuneLocale->__mapupper[_c];
153 }
154
155 static __inline __always_inline __ct_rune_t
__sbtoupper(__ct_rune_t _c)156 __sbtoupper(__ct_rune_t _c)
157 {
158 return (_c < 0 || _c >= __mb_sb_limit) ? _c :
159 _CurrentRuneLocale->__mapupper[_c];
160 }
161
162 static __inline __always_inline __ct_rune_t
__tolower(__ct_rune_t _c)163 __tolower(__ct_rune_t _c)
164 {
165 return (_c < 0 || _c >= _CACHED_RUNES) ? ___tolower(_c) :
166 _CurrentRuneLocale->__maplower[_c];
167 }
168
169 static __inline __always_inline __ct_rune_t
__sbtolower(__ct_rune_t _c)170 __sbtolower(__ct_rune_t _c)
171 {
172 return (_c < 0 || _c >= __mb_sb_limit) ? _c :
173 _CurrentRuneLocale->__maplower[_c];
174 }
175
176 static __inline __always_inline int
__wcwidth(__ct_rune_t _c)177 __wcwidth(__ct_rune_t _c)
178 {
179 unsigned int _x;
180
181 if (_c == 0)
182 return (0);
183 _x = (unsigned int)__maskrune(_c, _CTYPE_SWM|_CTYPE_R);
184 if ((_x & _CTYPE_SWM) != 0)
185 return ((_x & _CTYPE_SWM) >> _CTYPE_SWS);
186 return ((_x & _CTYPE_R) != 0 ? 1 : -1);
187 }
188
189 #else /* not using inlines */
190
191 __BEGIN_DECLS
192 int __maskrune(__ct_rune_t, unsigned long);
193 int __sbmaskrune(__ct_rune_t, unsigned long);
194 int __istype(__ct_rune_t, unsigned long);
195 int __sbistype(__ct_rune_t, unsigned long);
196 int __isctype(__ct_rune_t, unsigned long);
197 __ct_rune_t __toupper(__ct_rune_t);
198 __ct_rune_t __sbtoupper(__ct_rune_t);
199 __ct_rune_t __tolower(__ct_rune_t);
200 __ct_rune_t __sbtolower(__ct_rune_t);
201 int __wcwidth(__ct_rune_t);
202 __END_DECLS
203 #endif /* using inlines */
204
205
206 __BEGIN_DECLS
207 int isalnum(int);
208 int isalpha(int);
209 int iscntrl(int);
210 int isdigit(int);
211 int isgraph(int);
212 int islower(int);
213 int isprint(int);
214 int ispunct(int);
215 int isspace(int);
216 int isupper(int);
217 int isxdigit(int);
218 int tolower(int);
219 int toupper(int);
220
221 #if __XSI_VISIBLE
222 int isascii(int);
223 int toascii(int);
224 #endif
225
226 #if __ISO_C_VISIBLE >= 1999
227 int isblank(int);
228 #endif
229
230 #if __BSD_VISIBLE
231 int digittoint(int);
232 int ishexnumber(int);
233 int isideogram(int);
234 int isnumber(int);
235 int isphonogram(int);
236 int isrune(int);
237 int isspecial(int);
238 #endif
239
240 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
241 #include <xlocale/_ctype.h>
242 #endif
243 __END_DECLS
244
245 #ifndef __cplusplus
246 #define isalnum(c) __sbistype((c), _CTYPE_A|_CTYPE_D|_CTYPE_N)
247 #define isalpha(c) __sbistype((c), _CTYPE_A)
248 #define iscntrl(c) __sbistype((c), _CTYPE_C)
249 #define isdigit(c) __sbistype((c), _CTYPE_D)
250 #define isgraph(c) __sbistype((c), _CTYPE_G)
251 #define islower(c) __sbistype((c), _CTYPE_L)
252 #define isprint(c) __sbistype((c), _CTYPE_R)
253 #define ispunct(c) __sbistype((c), _CTYPE_P)
254 #define isspace(c) __sbistype((c), _CTYPE_S)
255 #define isupper(c) __sbistype((c), _CTYPE_U)
256 #define isxdigit(c) __sbistype((c), _CTYPE_X)
257 #define tolower(c) __sbtolower(c)
258 #define toupper(c) __sbtoupper(c)
259 #endif /* !__cplusplus */
260
261 #if __XSI_VISIBLE
262 /*
263 * POSIX.1-2001 specifies _tolower() and _toupper() to be macros equivalent to
264 * tolower() and toupper() respectively, minus extra checking to ensure that
265 * the argument is a lower or uppercase letter respectively. We've chosen to
266 * implement these macros with the same error checking as tolower() and
267 * toupper() since this doesn't violate the specification itself, only its
268 * intent. We purposely leave _tolower() and _toupper() undocumented to
269 * discourage their use.
270 *
271 * XXX isascii() and toascii() should similarly be undocumented.
272 */
273 #define _tolower(c) __sbtolower(c)
274 #define _toupper(c) __sbtoupper(c)
275 #define isascii(c) (((c) & ~0x7F) == 0)
276 #define toascii(c) ((c) & 0x7F)
277 #endif
278
279 #if __ISO_C_VISIBLE >= 1999 && !defined(__cplusplus)
280 #define isblank(c) __sbistype((c), _CTYPE_B)
281 #endif
282
283 #if __BSD_VISIBLE
284 #define digittoint(c) __sbmaskrune((c), 0xFF)
285 #define ishexnumber(c) __sbistype((c), _CTYPE_X)
286 #define isideogram(c) __sbistype((c), _CTYPE_I)
287 #define isnumber(c) __sbistype((c), _CTYPE_D|_CTYPE_N)
288 #define isphonogram(c) __sbistype((c), _CTYPE_Q)
289 #define isrune(c) __sbistype((c), 0xFFFFFF00L)
290 #define isspecial(c) __sbistype((c), _CTYPE_T)
291 #endif
292
293 #endif /* !_CTYPE_H_ */
294